Bucky is an Avenger, steve saved him from hydra. Bucky is grumpy and cold to people, but is really a big softie.

Bucky is secretly married to Jax, Tony Stark's 23 year old daughter. They love each other and don't want anyone to break them up, they've been married for three years but dating for five, the whole time Bucky has been an Avenger.

Bucky and Jax accidentally wore their wedding rings, the team noticed and started asking questions.